Brush making machine



A. zAHoRANsKY BRUSH MAKING MACHINE March 2l, 1933.v

Filed March 12, 2 Sheets-Sheet l Wil/@f l VENTOR A/vTo/v ZA URA SKYATTORNEYS March 21, 1933. A. ZAHORANSKY 1,902,113

BRUSH MAKING MACHINE Filed March. l2, 1951 2 Sheets-Sheet 2 WIV?- 77 7/I u a, 63 2f 20 'l INVENTOR i A/v-Ta/v 4f/@HANS y BY 'I ATTORNEYSPatented Mar. 21, i933 UNITED STATES PATENT` OFFICE ANTON zanommsxy, or'ron'rNaU, annum Bnirsir MAKING MACHINE .Application led latch 12, 1981,Serial No. 521,917, and in Germany Iarch 12, 1930.

This invention relates to improvements in brush making machines. Theinvention refers more particularly to filling 'devices of such machinesused for forming wire loops and for driving them, together with thebristles, into bores or recesses of the brush body.

Brush making machines are known wherein separate mechanisms are employedfor forming wire loops used for holding the bristles within the brushbody. Such mechanisms are usually connected by long channels with thefilling device of the machine and their work is-subjected to constantinterruptions owing to the fact that the wire loops often do not followthe path prescribed for them in the machine. Furthermore, machines areknown wherein the wire loops are formed within the filling device bymeans of a driving pounder subsequently employed for 2C driving the wireloop into a bore of the brush body, the forming of the loop taking placeduring a part of the stroke of the pounder and within the path thereof.It has been found that owing to the fact that the movement of thepounder has to take place quickly, the amount of time left for formingthe wire loop is not suiiicient in such machines to ensure a properworking of the pounder.y

Furthermore, the action of the pounder being that of short and sharpblows, the wire is consequently subjected to rather high tensions due towhich the material is often damaged prior to or during its insertioninto the brush body.

An object of this invention is to eliminate the above-mentioneddrawbacks by providing a filling device for 'brush making maf-- ingsimultaneously with means for driving said loops together with thebristles into the brush body, and thus also eliminating concussions ofthe machine and interruptions in work which are liable to occur if theabove mentioned steps are performed by means of a single device.

A further object is to provide a filling device of the above-mentionedkind which does lnot necessitate considerable changes in the other partsof brush making machines used heretofore and considerably increases theefliciency of such machines.

Still another object of this invention is to provide a filling devicewhereinan adjustment of the movement of the wire feeding device and thesubstitution of a pounder of different dimensions is suflicient toproduce brushes of different sizes.

Yet another object of this invention is to provide a filling device of asimple and efficient construction and having interchangeable parts Theabove-mentioned objects can be realized according to this invention by.providing independently operated loop forming and pounding means, whichare separated from each other by a rigid wall arranged betweenv thesame. Owing to this arrangement the feeding of the wire can take placeduring the forward or operative stroke of the pounder, the cutting offof a wire piece and the formation of a loop therefrom may take placeduring the time in which the pounder is fastening a previously formedloop in a bore of the brush body and the feeding movement of thefirst-mentioned wire loop into the path of the pounder may takeplaceduring the backward movement of the latter, which occurs after saidpreviously formed loop has been secured in position.

The present device is especially advantageous for use in brush makingmachines having reciprocating nozzles or heads because in such machinesas known heretofore the time for forming wire loops was exceedinglylimited. The invention is also applicable however to immovable fillingdevices and to machines wherein thebristles are moved in i a horizontaldirection as well as to those in which the bristles are verticaly moved.

The invention will appear more clearly from the following detaileddescription when taken in connection with the accompanying drawings,which illustrate two preferred embodiments ofthe inventive idea.

In the drawings: Fig. 1 shows diagrammatically a brush manufacturingmachme with al movable filling device in side elevation.

F 1g. 2 is avertical cross-section through the filling device of thismachine oli a larger plied to immovable filling devices.

Fig. 6 is a. section along the lines 6 6 of Fig. 4 lookin in thedirection of the arrows.

Fig. 7 is similar to Fig. 4 and shows the position of the various partsduring the movement of the wire in vertical cross-section.

Fig. 8 is a horizontal section along the lines 8-8 of Fig. 7.

' Fig. 9 is similar to Fig. 4 and shows the position of the variousparts at the beginning of the movement of the pounder.

Fig. 10 shows the arrangement of the wire loop within the brush body.

Fig. 11 is a diagram showing the working process of a filling deviceprior to this invention.

Fig. 12 is a. diagram showing the working process of a. filling deviceaccording to this invention.

' The modification shown in Figs. 1, 2, 3 and 4 is a movable fillingdevice having a nozzle 20 provided with a continuation body 20a andadapted to be reciprocated within a casing 21 by means of a, lever 22pivoted in 23 and adapted to be moved by a cam 24 rotated by the mainshaft 25. The body 20a of the nozzle i's provided with a channel 26 anda pounder 27 rigidly connected with an arm 28 is reciprocated withinthis channel by means of a lever 29 connected in 30 with a crank arm 31adapted to be moved by an eccentric 32 rotated by means of the mainshaft 25. The upper nozzle body 33 is connected withthe lower body 20aby any suit? able means (not shown) and is reeiprocated together withthe nozzle 20 by means of the lever 22. AAn immovable casing 34separates the movable body 33 from a movable loop former 35 adapted toslide on said casing by means of a lever 36 pivoted in 37 to the frame38 of the machine and engaging a cam 39 rotated by the main shaft 25. Anupper casing 40 is connected with the intermediate casing 34 and thelower casing 21 by means of screws 41 and is attachedtothe frame 38 ofthe machine. An 4anvil 42 is firmly connected with the intermediatecasing 34 by vmeans of a screw 43 (Fig. 8) and is used for bendlng-thewire pieces. A hammer 44 is reciprocated in a direction per endicular tothe direction of movement of tlie other above-mentioned reciprocatingparts by means of an arm 45 connected with an arm 46 pivoted in 47 andconnected with an arm 48 carrying a roller 49 which slides on a camsurface 50 rotated by means of the main shaft 25. The lower end' of thehammer 44 is U-shaped in cross-section (Fig. 9) and is adapted to passthrough U-shaped slots 51 and 52 (Fig. 4) extending through the uppercasing 40 and the intermediate casing 34. The upper nozzle body 33 has acorresponding slot 53 adapted to align with the slot 52 at a certainposition of the body 33 (Fig. 2). The loop former 35 is provided with.al slot 54 (Figs. 4 and 8) andthe hlammer 45 is adapted to pass throughthis s ot.

A further modification of this invention is shown in Figs. 5, 6, 7, 8and 9 of the drawings. Herein the nozzle 20 with its continuation body20a and the upper part 33 are rigidly attached -to the frame of themachine and are immovable, so that the brush body has to be movedtowards the nozzle by any known means not shown in the drawings. Thepounder 27 is reciprocated within the nozzle in a way similar to thatdescribed in connection with the device shown in Fig. 1. The loop former35 is also similarly reciprocated between the fixed 'upper casing 40 andthe immovable nozzle body 33, the screws 41 serving to connect thecasing 40 with the lower part 20a of the nozzle. The hammer 44 is alsomoved in a similar way. The device shown in Figs. 1, 2, 3 and 4 of thedrawings operates as follows:

A long strip of Wire 55 (Figs. 2 and 8) is drawn sidewise eithermanually or by any automaticmeans (not shown) into the device. Thereuponthe loop former 35 is moved forward (from right to left in the drawings)until a knife 56 (Figs. 2 and 7) carried by saidholder comes intocontact with the wire 55 and cuts off a piece of wire having a lengthequal to the width of the holder (Fig. 8). During the further movementof the holder the wire is pressed against the anvil 42 and bent owing tothe action of the loop former.

into a U-shaped loop. Then the hammer 44 begins its downward stroke andpasses through the slot 51 of the -upper casing 40 and through the slot54 of the loop former 35. The U-shaped end of the hammer 44 engagesthereby the bent wire piece and pushes ,it through the slot 52 of theintermediate casing 34. In this moment the nozzle members 20, 20a and 33are in such a position thatj the slot 53 of the upper nozzle body 33 isexactly underneath the slot 52 of the casing 34 so. 'that the hammer 44together with the piece of wire can pass thro'ugh the slot 53. Thehammer 44 pushes the wire into the channel 26 and in the path of thepounder 27. Thls posit-ion is shown in 2 of the drawings. In thisposition the nozzle 20'and the pounder 27 are -at the end of theirbackward stroke.

The hammer 44 begins then to move upward and withdraws from the slot 53.of thev right to left with respect to the positiona The pounder 27`4shown in the drawings. also begins its forward stroke but moves fromrightto left with avelocity different from that of the nozzle. Thenozzle 20 comes into contact with the brush body and the pounder 27pushes the'wire loop together with the lbristles which can be fed intothe channel 26 by any known means, not shown in the drawings, into oneof the bores of the bristle body. This position is shown in Fig. 4 ofthe drawings. In this position the hammer 44 is at the end of its upwardstroke and the nozzle 2O and the pounder 27 have terminated theirforward stroke. The loop former 35 is at the end of its backward stroke.The nozzle 20 and the pounder 27 begin then to move backwards and theloop Aformer 35 begins its forward'movement, thereby cutting oi'anotherpiece of wire. The hammer 4 4 begins then its downward stroke and thewhole operation is repeated.

The device shown in Figs. 5, 6, 7, 8 and 9 operates in a way verysimilar to that described in the foregoing exam le with the soleexception that the nozzle oes not execute any movement, being firmlyattached to the machine frame, so that the brush body has to be movedinto contact with the nozzle at an appropriate moment by any known meansnot shown in the drawings. In the position shown in Figs. 5 and 6 thehammer 44 is moving upwards whereas the pounder 27 is in the midst ofits forward stroke. shown in Figs. 7 and 8 the wire 54 is moved in thedirection of the arrow so that the next piece of wire can be cut o bymeans ofthe knife. 56. In the position shown in Fig. 9 the hammer 44 ispushing the wire loop through the slot 53 into the channel. 26 and thepounder 27 is moving backwards.

Fig. 10 shows the arrangement of al wire loop 55 within the brush body60, the-sharp end of the loop being driven into the wood by the actionof the pounder.

Figs. 11 and 12 show diagrammatically the advantages achieved by thisinvention. Fig. 11 is a diagram representing the general working processof a illing device prior to applicants invention, wherein the wire loopis formed by the pounder itself. In the diagram the circle representsthestroke or the time of the stroke of the pounder, A and B being thetwo dead points wherein the movement of the pounder is reversed. At Cthe` pounder comes in Contact with the wire, which is cut o at D. Thearc DE represents In the position 1 HB represents the driving of thewire together with the bristles by the pounder within the device. At Bthe wire and' the bristles are inserted into the brush body. The totalperiod of cutting and bending the wire is represented by an acute anglea.

Fig. 12 shows a similar diagram representy ing the working process of adevice according to this invention. The process of cutting oli' the wiretakes place during a much longer time represented by the arc C1 D1, thelength of the process of bending the wire heilig also considerablyincreased as represented by the arc D1 E1. The arc E1 F1 represents thetime necessary for driving the wire into the path of the pounder, whichmoves it along the noz'- zle channel during the time represented by thearc'F1 B1. The total period 'of cutting and bending the wire isrepresented by an obtuse angle a, which is much larger than thecorresponding angle a in Fig. 11.

I claim 1. A setting device for brush making machines comprising incombination, a frame. means at least partly surrounded by a part of saidframe for driving wire loops into a brush body, separate means forcutting off and bending pieces of wire, said cutting and bending meansbeing at least partly surrounded by a different part of said frame, andmeans for conveying said wire loops to said driving means, saidconveying means being guided by said frame.

2.A setting device for brush making ma`v chines, comprising in'combination, a nozzle, a pounder carried by said nozzle and situatedwithin a channel formed in said nozzle, meansv connected with saidpounder for reciprocating the same, a loop former for cutting otf andbending wire pieces, means connected with said loop former forreciprocating the same independently of said pounder, a common frame forsaid nozzle and said loop former,

. chines, comprising in combination, a4 nozzle,

afpounder carried by said nozzle and situated withinr a channel formedin 'said' nozzle, 'V means connected with said pounder for reciprocatingthe same, a loop former for cutting off and bending wire pieces,meansconnected with said loop former for reciprocating the sameindependently of said pounder. a common frame for said nozzle and saidloop former, a hammer guided by said frame for conveying wire piecesinto said channel, and means connected with said hammer forreciprocating the same. l 4. A setting device for brush making machines,comprising a nozzle, a pounder carried by saidy nozzle andu situatedwithin a channel formed in said nozzle, means connected with saidpounder for reciprocating the same, a loop former for cutting oft' andbending Wire pieces, means connected With said loop former forreciprocating the same independently of said pounder, a common frame forsaid nozzle and said loop former, a knife attached to said loop former,an anvil for bending the wire pieces cooperating with said loop former,a'hammer guided by said frame and said anvil forl conveying Wire piecesinto said channel, and means connected with said hammer forreciprocating the same.

5. A setting device for brush making machines, comprising a nozzle, acasing carrying said nozzle, a pounder carried by said nozzle andsituated Within a channel formed in said nozzle, means connected Withsaid pounder for reciprocating the same, a loop former for cutting olfand bending wire pieces, a second casing connected with thefirst-mentioned casing and carrying said loop former, the second casingseparating said loop former from said nozzle, a knife attached to saidloop former, an anvil for bending the Wire pieces cooperating With saidloop former, a hammer guided by the walls of an opening formed in thesecond-mentioned casing and said anvil'for conveying Wire pieces intosaid channel, and means connected with said hammer for reciprocating thesame.

6. A setting device for brush making machines comprising in combinationa nozzle, a lower nozzle body forming a continuation of said nozzle, anupper nozzle body connected With said lower nozzle body, a casingcarrying said nozzle body, means for reciprocating said nozzle body, apounder Within said nozzle body, means for reciprocating said pounderindependently of said nozzle body, a loop former, a second casingseparating said loop former from said nozzle and carrying said loopfermer, a knife attached to said loop former, ananvilvfor bending wireloops in said second casing, means for reciprocating said loop formerindependently of said pounder for the purpose of forming the Wire loopsduring the movement of said nozzle body, a hammer adapted to convey saidWire loops into the path of said pounder and means for reciprocatingsaid hammer.

7 A setting device for brush making manature. v

ANTON ZAHORANSKY.

chinos comprising in combination a nozzle, a

lower nozzle body forming a continuation of said nozzle, an upper nozzlebody connected with said lower nozzle body, a casing carrying saidnozzle body, a machine frame carrying said casing, a Vmain shaft mountedin said frame, means for rotating said shaft, a lever connected withsaid nozzle body and mounted on said frame, a pounder Within said nozzlebody, a lever connected With said pounder and mounted on said frame, aloop former, a second casing separating said loop former from saidnozzle, a knife attached to said loop former, an anvil for bending wireloops, a

